EP 0955608 B1 20030709 - Method and apparatus for resizing a compressed image
Title (en)
Method and apparatus for resizing a compressed image
Title (de)
Vorrichtung und Methode zur Änderung der Grösse eines komprimiertes Bildes
Title (fr)
Dispositif et methode de modification des dimensions d'une image numerique comprimee
Publication
Application
Priority
- US 8463298 P 19980507
- US 16079098 A 19980925
Abstract (en)
[origin: EP0955608A1] A method (300; 500) and apparatus (100) for reducing information artifacts imparted to a decoded video information stream by an MPEG-like decoder utilizing discrete transform (DCT) domain compression to produce a size-reduced reference image information frame. Specifically, embodiments of the present invention responsively selects one of a plurality of pre-defined DCT coefficient matrices in response to the amount of compression to be imparted to the reference image information frame, and the presence or absence of field-mode encoding the reference image information frame. <IMAGE>
IPC 1-7
IPC 8 full level
H04N 1/415 (2006.01); G06T 3/40 (2006.01); G06T 9/00 (2006.01); H04N 7/26 (2006.01); H04N 7/30 (2006.01); H04N 7/36 (2006.01); H04N 7/46 (2006.01); H04N 7/50 (2006.01)
CPC (source: EP US)
G06T 3/4084 (2013.01 - EP US); H04N 19/132 (2014.11 - EP US); H04N 19/16 (2014.11 - EP US); H04N 19/176 (2014.11 - EP US); H04N 19/186 (2014.11 - EP US); H04N 19/423 (2014.11 - EP US); H04N 19/428 (2014.11 - EP US); H04N 19/48 (2014.11 - EP US); H04N 19/51 (2014.11 - EP US); H04N 19/59 (2014.11 - EP US); H04N 19/61 (2014.11 - EP US); H04N 19/63 (2014.11 - EP US); H04N 19/645 (2014.11 - EP US); H04N 19/90 (2014.11 - EP US); H04N 19/10 (2014.11 - EP US); H04N 19/115 (2014.11 - EP US); H04N 19/146 (2014.11 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0955608 A1 19991110; EP 0955608 B1 20030709; DE 69909364 D1 20030814; DE 69909364 T2 20040609; JP 2000050274 A 20000218; JP 4361987 B2 20091111; TW 416221 B 20001221; US 6792149 B1 20040914
DOCDB simple family (application)
EP 99303309 A 19990428; DE 69909364 T 19990428; JP 12736099 A 19990507; TW 88107458 A 19990507; US 16079098 A 19980925